Package machine



9 Sheets-Sheet l Dec. 8, 1936. w. w. MccAlN PACKAGE MACHINE Filed Jan,25, 1935 mmm Mg 6% I www 1 vmm Dec. 8, 1936. w. w. MccAlN PACKAGEMACHINE 9 Sheets-Sheet 2 .www MBH Filed Jan. 25, 1933 Dec. 8, 1936. w.w. MCcAlN 2,063,392

PACKAGE MACHINE Filed Jan. 23, 1935 9 Sheets-Sheet 5 Dec. 8, 1936. w. w.MCCAIN PACKAGE MACHINE Filed Jan. 25, i933 9 Sheets-Sheet 4 Dec. 8,1936. w w MCCAlN 2,063,392

PACKAGE MACHINE Filed Jan. 25, 1935 9 Sheets-Sheet 5 Dec. 8, 1936. w. w.MCCAIN PACKAGE MACHINE Filed Ja'n. 23, 1955 9 sheets-sheet e We W@yC/mwa, zj-Mw Dec. 8, r1936. w, w. McfcAlN PACKAGE MACHINE 9Sheets-Sheet 7 Filed Jan. 23, 1955 Dec. 8, 1936. w. w. MocAlN PACKAGEMACHINE Filed Jan. 23, 1933 9 Sheets-Sheet 8 W. W. MCCAIN PACKAGEMACHINE Dec. 8, 1936.

Filed Jan. 23, 1935 9 Sheets-Sheet 9 Patented Dec. 8, 1936 PACKAGEMACHINE Wes W. McCain, Oak Park, Ill., assigner to Shellmar ProductsCompany, Chicago, Ill., a corporation of Delaware Application January23, 1933, Serial No. 653,033

11 Claims.

The present invention relates to the formation of packages, and hasparticular reference to a method and machine for making fabricatedpackages such as those having a relatively rigid bottom or backingmember and a thin, flexible front or top member.

Packages of this general type have met with considerable favor in theart. One of such packages consists of a rectangular cardboard back towhich are glued along the lower longitudinal edges thereof thelongitudinal edges of a rectangular sheet of thin transparent cellulosesheeting such as the product known as "cellophane, the ends of thecellulose sheeting extending beyond the cardboard and being adapted tobe folded over at a point spaced from the cardboard and secured to thecardboard to close the package. Preferably the side portions of thecellulose sheeting are provided with longitudinal bellows folds.

This extension of the ends of the cellulose material beyond the ends ofthe cardboard complicate somewhat the rapid production of the packages.Also, the necessity of producing packages of various lengths and widthsmakes it essential, from an economical standpoint, that a machine forproducing the packages be adjustable for different sizes.

A principal object of the present invention is the provision of a methodand apparatus for production of packages of the type described.

An additional object is the provision of apparatus for producingpackages of different sizes.

These and other objects will be apparent from a consideration of thefollowing illustrative and explanative description of a preferredembodiment of my invention and by reference to the accompanyingdrawings, in which Fig. 1 is a side view of a machine for makingpackages of the type described;

Fig. 2 is a side View of the opposite side of the machine;

Fig. 3 is a plan view of a part of the front section of the machine, andshows the forming and indexing means thereof;

Fig. 4 is a sectional view taken along line 4--4 of Fig. 3;

Fig. 5 is a sectional view taken along line 5-5 of Fig. 3;

Fig. 6 is a sectional view taken along line 6 6 of Fig. 3;

Fig. 7 is a sectional View taken along line I-'l of Fig. 3; Fig. 8 is anenlarged fragmentary view of the tube-forming mechanism used inconnection with the machine;

Fig. 9 is a sectional view taken along line 9-9 of Fig. 8;

Fig. 10 is a sectional view taken along line 5 Ill-I0 of Fig. 8 and'alsoshows rollers for assisting the action of the tube-forming mechanism;

Fig. 11 is an enlarged fragmentary View of the second and third formingmechanisms for opening and closing the tube lip;

Fig. 12 is a sectional view taken along line I2-I2 of Fig. 11;

Fig. 13 is a sectional View taken along line I3-I3 of Fig. 11;

Fig. 14 is a sectional view taken along line Ill-I4 of Fig. 11;

Fig. 15 is a sectional view taken along line I5-I5 of Fig. 11;

Fig. 16 is a plan view' of the machine showing the hopper and gluingmechanisms thereof; 2O

Fig. 17 is a plan view of the machine taken along line I'I-I'I of Fig.18 and shows the cutting and transfer mechanism of the machine;

Fig. 18 is 'a sectional view takenv along lines I8-I8 of Figs. 16 and17; 25

Fig. 19 is an enlarged sectional view taken along line I9-I9 of Fig. 18and shows the operating of the gluing rollers;

Fig. 20 is a perspective view of a package constructed by the machine;and

Fig. 21 is a sectional view of the package taken along line 2I-2I ofFig. 20.

In accordance with my invention, a web of transparent cellulose materialis continuously formed into an open-sided tube provided withlongitudinal bellows folds along its side portions and inwardly foldedfree edges along its top. These inwardly folded edges are continuouslyopened as the tube passes through the machine, and sections of cardboardbacking material are deposited within the opened edges and resting uponthe bellows fold at properly spaced intervals. The opened edges are thenfolded down and adhesively secured to the back of the cardboard, therebyforming a fabricated web of package lengths. This web is passed througha cutter which severs the cellulose material halfway between the endsection of cardboard and the one next adjacent, to complete theformation of individual packages.

As shown in the drawings, a roll III of a cellophane web II is mountedon a shaft I2 journaled in bearings I3 of the frame structure I4. Theweb II is threaded around idler rolls I5, I6; I1, I8 and I9, which actto maintain the web in alignment. From roll I3 the web beneath thebottom former plate 23, the latter being supported near its rear portionby means of an arm 22 which is adjustably mounted on a cross bar 23 ofthe frame structure. The rear portion 20 inclinesdownwardly at an anglepreferably less than 45 and joins the horizontal front portion 24.

As the cellulose web changes its direction from an inclined angle to thehorizontal, its outer free edges, which extend beyond the lower formerplate 23, are turned upwardly. A horizontal upper former plate 23 issuspended adjacent and spaced from the lower former plate 23 by an arm21 extending from the cross bar 23 of the frame structure. Extendinginwardly between the upper and lower former plates are side or bellowsformer plates 28 which press the upwardly extending edges of thecellophane sheet inwardly between the top and bottom plates to form abellows fold. The free edges of the portions are turned over against theupper forming plate 23 by means of the rubber faced tension rollers 2|.

The folding of the web transforms the same into an open tube formationhaving longitudinal bellows folds along its edges and inwardly extendingfree edges at its top. This tube passes from the forming plates andbetween upper draw roll 29 and lower draw roll 33, these rolls beingmounted on shafts 3| and 32, respectively, which are journaled in theframe structure I4. In addition to progressing the cellulose web throughthe machine, the draw rolls, at least one of which is preferably rubberfaced, exert a certain amount of pressure on the folded portions of thepartial tube, thereby making permanent the creases caused by theformation of bellows folds and the inwardly turned free edges. y

Before the fabrication of cardboard backing members with the foldedcellulose web is possible it is necessary again to open the folded edges25 so that the cardboard sections mayl be inserted therebetween. Forthis reason the folded web is passed through a second forming mechanism.From the draw rolls the folded web passes upwardly over an idler roll33. It then passes downwardly beneath the inclined former plate 34, thefree edges of the web being threaded above the plate, whereby the freeedges 25 are turned upwardly and outwardly, the flared plates 35assisting in this action as shown in Figs. 1l and 12.

As the cellulose we b travels downwardly from roll 33 the outer edges25, which have been folded inwardly by the forming mechanism, pass overthe top of plate 34, while the remainder of the folded web passesbeneath the plate. Adjacent the bottom of plate 34 are provided plates35 which are twisted from a position flat against the former plate to anupright position adjacent the outer edge of the former plate. As thefolded-over free edges 25 of the cellulose web strike the twisted orflanged plates 35 they are rotated thereby into erect position, theaction being assisted by the change in direction of the web adjacent thelower portion of plate 34 and the flanged plates 35, as shown in Fig. 5.

Mounted transversely of the path of the web Il and adjacent the inclinedplate 34 is a shaft 33 having keyed thereon two associated gripper disks31 which are adapted to hold therebetween one or more gripping fingers33. The disks 31 are clamped together by bolts 33 and are proaoeasaavided with a. number of spaced holes 43 adiacent their peripheralportion. Pins 4| are passed through corresponding holes 43 in the twodisks and form shafts to which the gripper fingers 33 are pivoted.Adjacent the gripper fingers 33 and mounted in slots 42 of the disks 31are the blocks 43 against which the outer portion of the gripper fingersare pressed by means of recessed springs 44 acting against the lower orinner end of the pivoted Zripper fingers. It will be seen that thenumber and position of gripping units can be varied as desired. Tochange the position of the gripper units the disks 31 are separated andpins 4| are changed to the proper holes 43, gripper fingers 33 beingcarried on the latter. Blocks 43 are also changed in position tocorrespond with the changed position of the gripper fingers, and thedisks 31 are again clamped together. Gripper umts may be added orremoved, as will be obvious. A hopper 45 is provided to hold a supply ofcardboard backs 43 which are removed, one at a time, from the bottom ofthe hopper by means of the reciprocating dog 41. The hopper is madeadjustable in width and length to accommodate cardboard backs of varioussizes.

As the cardboard backs 43 are kicked from an open slot in the lower wallof the hopper by the forward motion of 41, they are received between anupper roll 43 and a lower roll 43;l carried on shafts 53 and 5|,respectively, which are suitably journaled in the frame structure. Thesedraw rolls assist in withdrawing the backing members 43 from the hopperand transfer them to a second set of draw rolls 52 and 53 carried byjournaled shafts 54 and 55, respectively.

From the second set of draw rolls, the cardboard backing members 43 aredelivered into a system of tapes which travel at a speed faster than thesurface speed of the gripper disks 31. These tapes carry the cardboardmembers substantially tangentially to the gripper disks and movement ofreciprocating dog 41 is so timed that the cardboard members reach thegripper disks at the time gripper fingers 33 are momentarily opened.

Upper continuous tapes 53 are carried by a drive roll 33 mounted onshaft 3| which is journaled in the main frame structure I4. Afterpassing beneath roll 33 the upper tapes pass in the direction of theirtravel toward the gripper disks 31 and at a substantially tangentialdirection thereto. Adjacent the gripper disks, tapes 53 turn about anidler roller 32 and travel in a reverse direction over roller 33 whichis carried by an adjustable arm 34 pivoted to shaft 35.

Lower continuous tapes 51 pass about drive roll 33 mounted on shaft 53which is journaled in the frame I4 in a manner similar to shaft 3|.Tapes 51 pass over roll 33 in the direction of their travel and extendalong the lower side of upper tapes 53 to an idler roller 31 adjacentthe gripper disks. After passing beneath roller 31, tapes 51 return toroll 33 across a roller 33 carried by an adjustable arm 33, the latterbeing supported on a shaft 13.

Shafts 35 and 13 and the idler rolls 32 and 31 are mounted inindependent frame units 53 which are pivoted to and adjustable aboutshaft 53. 'I'he free end of the independent frame units 53 areadiustably supported by engagement in openings 1| of upwardly extendingarms 12, the latter being pivoted to a shaft 13 mounted in the framestructure |4.

As before stated, the tapes travel at a speed greater than theperipheral speed of the gripper disks. 'I'he cardboard backing membersare therefore thrust beneath the gripper fingers 38 as the lattermomentarily, open at the point of contact of the cardboard and gripperdisks. By proper regulation of the level of engagement of shaft 55 withpivoted arm 12, the cardboard backing members may be made to contact thegripper disks at any desired angle. As the tape system pivots aboutshaft 59, it will be seen that adjustment of the position of frames 58will require adjustment of the upper tape 56. vTo make this taperelatively longer or shorter, it is necessary only to adjust theposition of arm 64 on shaft 65, a suitable set screw being employed tolock the arm in any desired position. The relative length of lower tape51 similarly is controlled by regulation of arm 69 on shaft 10.

Asshown in detail in Fig. 5, the pins 4I to which'the gripper fingers 38are pivoted extend through one of the gripper disks and has secured toits outer end an arm 14 which carries a cam roller 15. 'I'his cam rolleris positioned to contact and be depressed by la lower stationary cam 16adjacent the lower portion of the gripper disk and an upper stationarycam 11 adjacent the upper portion of the gripper disk. When the rollers-1-5 are not in contact with these cams, the gripper fingers are pressedagainst the gripper blocks by the action of compression spring 44 actingon the opposite end of the gripper fingers. However, as the cam roller15 strike the cam 16 and 11 the gripper fingers are opened against thepressure of springs 44. When the cam roller leaves the cams, the springs44 cause the gripper fingers again to press against the gripper blocks.

Upper cam 11 is so positioned as to cause the gripper fingers 38 to openup just before the cardboard backing members 46 are thrust intotangential position with respect to the gripper disks, and, as thecardboard members are traveling faster than the peripheral speed of thegripper disks, the cardboard is thrust beneath` the opened gripperfinger, and is maintained in this position by the pushing action of thetapes until the cam roller passes out of contact with cam 11, whereuponthe gripper finger closes to engage the cardboard.

After engaging the cardboard backing member, the gripper units continuerotation in a clockwise direction as viewed in Fig. 4. To provide aguide andguard for the cardboard members as rotated with the gripperunit a semicircular plate 18 is mounted concentric with the gripperdisks. This plate is brazed to a bar which is attached to the supportmember 19. The latter member also acts as a support for the former unit34, and is pivotally mounted on a cross rod 88 which is attached to theframe of the machine, a set screw 8l being employed to lock the member19 in any desired position. It will be observed that this mounting ofthe former member 34 permits of its adjustment with respect to the roll33.

The gripper disks 31 ordinarily are provided with a plurality of gripperfingers, so that a plurality of cardboard backing members are carriedthereon in spaced relation. As the gripper disks rotate into suchposition that the gripper fingers are in the position shown by the lowergripper ngers in Fig. 4, the cardboard backing members carried therebyare inserted between the upraised free edges 25 of the folded celluloseweb and above the bellows fold thereof. At this DOint the cam wheel 15strikes the lower cam 16 and the gripper fingers open, therebydepositing the cardboard sections in the folded web at spaced intervals.A

In traveling from the hopper 45 to the gripper disks' 31 and while heldby tapes 56 and 51, the cardboard backing members are provided alongeach longitudinal marginal portion of their lower side with a line ofglue or other suitable adhesive. As shown in Fig. 18, a glue pot 82 ismounted to the frame structure beneath the tapes 51. Within this potrotatable glue wheels 84 are mounted, and make peripheral contact withglue wheels 85, the latter being mounted on shaft 59 as shown in Fig.19, and making contact at their upper portion with the cardboard backingmembers along the longitudinal edges of their lower sides, therebydepositing marginal lines of glue.

Thus, as the folded cellulose web passes beneath the gripper disks it isprovided with a series of spaced cardboard backing members havinglongitudinal glue lines on their upper surface and resting upon theupper layer of the bellows fold in the web. The web then passes througha third former, the structure and action of which is shown in Figs. ll,13, 14 and 15. This third former consists of a longitudinally extendingbase plate 86 above which the web travels and two twisted or flangedplates 81, adjustably mounted thereon. Plates 81 are twisted from anupright position adjacent the outer edges -of the cellulose web, asshown in Fig. 13, into a position parallel to and spaced from the baseplate 86, as shown in Fig. 15. As the cellulose web containing spacedcardboard backing members passes through the third former, the openedlip portions or free edges 25 are rotated back into closed position andin contact with the cardboard backing member, thereby causing the edgesor lips 25 of the web to adhere to the glue on the cardboard backingmembers, and completing the fabrication of the web.

'I'he plate 86 is provided with a central longitudinal recess in whichtravels in the direction of travel of the web a continuous tape 88. Thistape passes about an idler roller 89, a tension roller 98 which iscarried on an adjustable arm 9|, and a drive roller 92. The idler roll89 is positioned beneath the gripper disks and the tape is driven insuch a manner to impart forward motion to the cellulose web throughoutthe length of plate 86.

An upper continuous tape 93 is mounted immediately above the plate 86and cooperates with the lower plate in transferring the fabricated webin a forward direction. An adjustable idler roller 94 carries one end ofthe continuous tape 93 while the opposite end passes about an upperdrive roll 95, which is mounted immediately above the similar drive roll92. The rolls 95 and 92 carry tapes 93 and 88 in recesses, whereby therolls are permitted to contact the fabricated web and toy exert apulling effect thereon. Also, as these rolls contact the fabricated webadjacent its edges, the folded-over edges of the cellulose web arepressed into contact with the glued cardboard backing member. It ispreferred that this contact be light in order to prevent squeezing ofthe glue from beneath the edges 25.

Roller 94 is mounted on adjustable arms 96 and 91, whereby the tensionof upper tape 93 as well as its distance from lower tape 88 may bevaried as desired.

The main drive for the cellulose web is provided by draw rolls 30 and3|. However, it is important to maintain the forward end of the webtaut, and for this reason the rolls 92 and 95 are preferably rotatedslightly faster than the peripheral speed of draw rolls 30 and 3|.

A second base plate 98 is mounted on the side of rolls 82 and 95opposite plate 88 and acts as a continued support for the fabricatedweb. The importance of this will be further apparent upon subsequentconsideration of the differential drive of the machine.

Above plate 98 is mounted a small, centrally positioned roller 99carried by a shaft |00. This roller is driven at a speed equal to thatof tension rolls 92 and 95, and continues the even travel of thefabricated web into the cutting mechanism to be described presently. Asimilar roller carried by shaft |02 is mounted beneath base plate 98 andextends upwardly through an opening therein into contiguous positionwith respect to roller 99.

After the cellulose web is fabricated to the spaced cardboard backingmembers, the web is severed between the end cardboard and the one nextadjacent to form individual packages having a rigid back member andthin, flexible, transparent facings and ends extending beyond the endsof the cardboard back. Ordinarily, one or both of the projecting ends ofcellulose material will be folded over and glued to the back of thecardboard, before or after insertion of articles to be packaged, but forpresent purposes it is suillcient to describe the mechanism by which thepackage is completed without folded-over ends.

The cutting mechanism by which individual packages are severed from thefabricated web comprises an upper cutting roll |03 provided with one ormore cutting knives |04 secured thereto and a lower stationary cuttingplate |05. The mechanism shown in the drawings has four knives arrangedat 90-degree intervals about the cutting roll. These knives are arrangedto cut at intervals. That is, they are so timed as to cut individualpackage lengths from the web by severing the cellophane web betweenadjacent sections of cardboard.

Cutting roll |03 is mounted on a shaft |06 which is journaled inbearings |01 adjacent the cutting knives, an extension of the shaftbeing journaled in a third bearing in the frame structure of themachine.

As package lengths-are severed by the cutting mechanism, they arereceived by a system of tapes which travel at a greater speed than thespeed of the fabricated web, and are carried thereby to a source ofdisposal or to mechanism for performing further operations such as endfolding. This system, as shown in Fig. 18, includes upper tap |08carried by idler rollers |08 and ||0, a tension roll carried by anadjustable arm ||2, and a drive roller H3. Below tapes |08 are mountedsimilar tapes |4 carried by idler rollers ||5, IIS, ||1, H8, ||9 and|20, and a drive roll i2| positioned beneath roll H3. Idler roll i8 isadjustably mounted in horizontal slots |22 of the frame structure andcarries gears |23 which mesh with the gears of a stationary rack bar|24. The tension of the tapes is adjusted by regulating the position ofroller ||8 in the slot |22, a nut or set screw being employed tomaintain the roller in any desired position.

To maintain the severed package lengths in alignment during theirtransfer by tapes |08 and ||4 a guide |25 is mounted adjacent the tapes.This guide is carried by arms |26 which are supported on a bar |21.

The individual packages |28,.,shown'in Figs. 20 and 21, emerge fromtapes |08 and ||4 and fall into a hopper |28.

An important feature of my machine is the indexing system by whichpackages of diil'erent lengths may be produced. To accomplish thisresult it is necessary to regulate the action of the cutting knives inaccordance with the length of the cellulose material between successivecuts. In accordance with my invention an index wheel I 40 is keyed toshaft 36 upon which the gripper units are mounted. The index wheel,which is preferably larger in diameter than the gripper disks, isprovided with a series of openings |4| adjacent its periphery, whichopenings correspond in spacing to the spacing of openings 40 in thegripper disk 31. The openings 40 are arranged in a combination whichwill allow one, two, three, four, five, six or seven gripper fingers tobe mounted thereon in equally spaced relation, the number chosen beingdependent upon the length of the cardboard backing member and the lengthof the cellulose end portion extending beyond the cardboard in thecomplete package.

In openings |4| in the index wheel corresponding to the openings 40 ofthe gripper disk into which are secured gripper fingers, are mounted camrollers |42. These rollers, in rotating with the gripper fingers,transfer power through a Geneva motion mechanism to a chain of gearsoperating the cutting knives, thereby providing for one cuttingoperation for each cardboard backing delivered by the gripper units, andfor timing such operation to sever the web mid-way between adjacentsections of cardboard.

The cam rollers |42 rotate with the index wheel and engage the cam wheel|43 at the openings |44 therein, continued rotation of the index wheelimparting 80 degrees rotation to the cam wheel, thereby causing one ofthe knives |04 to operate.

Cam wheel |43 is keyed to a shaft |45 which is journaled in the framestructure I4 and carries a gear |46. This gear operates the cutting rollthrough a chain of gears |41, |48, |49, |50 and To prevent rotation ofshaft |45 between cutting periods, a cam-locking wheel |52 is keyed toshaft 36 of the index wheel, and this cam wheel engages depressedportions |54 in a cooperating cam-locking wheel |53 which is keyed toshaft |45. When the cam rollers |42 rotate into a positionto operate thecam wheel |43, the cam-locking wheel |53 is released from engagementwith cam-locking wheel |52 by rotation of the depressed portions |55 ofthe latter into a position adjacent the cam-locking wheel |53. After 90degrees rotation the two cam-locking wheels |52 and |53 again engage tostop rotation of the cutting knives. It will be understood that acam-locking wheel 52 will be employed which has anumber of depressedportions |55 equal to the number of cam rollers |42.

The length of packages produced by the machine does not depend upon thespeed of the web therethrough, and the speed of the web is notnecessarily changed upon a change in the package length. Package lengthisr controlled by the number and length of cardboard sections insertedin the web. If it is desired to produce a relatively ong package, onlyone gripper finger may be em loyed. In such case, only one cam roller ismounted on the index wheel, whereby the cutting mechanism operates onlyonce for each revolution of the gripper units. It is also in thedrawings, the machine is set for the production of a package having aIlength requiring three gripper fingers on the gripper disks, a similarnumber of cam rollers being mounted on the index wheel, and cams |52 and|53 being ernployed with three depressions.

/In order to feed a cardboard backing member for each gripper fingeremployed on the gripper disks, a cam |56 having a number of equallyspaced depressed portions equal to the number of gripper lingers on thegripper disks is keyed to shaft 36. This cam operates a cam follower |51which imparts reciprocal motion to the lever arm |58, the latter beingpivoted to the frame at |59, and having its free end secured to a bar|60. This bar operates a crank arm |6| which rotates shaft |62 to whichthe reciprocating dog 41 is attached by meansf of open ended arms |63.Thus, each time a gripper finger opens up, a cardboard backing `memberis fed into it from the hopper 45.

To drive the mechanism described heretofore, any suitable means may beemployed. As shown in the drawings, a main drive shaft |65 has a gear|10 meshing with gear |1| on shaft |12. The latter shaft is providedwith a sprocket |13 and chain |14 which drivesshaft |15 through sprocketwheel |16. The opposite end of shaft |15 has a gear |11 and a pivotedarm |18, the position of the latter being controlled by nut |19 and slot|80. A gear |8| is journaled in arm |18 and drives a larger gear |82which is keyed to shaft 36 of the gripper disks and index wheel.

Gear 11 also meshes with an idler gear |83 which drives a second idlergear |84. The latter gear has connected to it a bevel gear |05 whichtransmits power through a similar bevel gear |86 to a vertical shaft|81. To the lower end of shaft |81 is attached a bevel gear |88, andthis gear drives horizontal shaft |89 through a similar bevel gear |90.Shaft |89 has a bevel gear |9| keyed to it in order to drive, throughbevel gear |92, a short vertical shaft |93. Shaft |93 has a bevel gear|94 meshing with a bevel gear |95 on shaft to which is connected gear|96, the latter serving to drive gear |91 keyed to an exten- `sion oftension roll 92. Gear |91 drives a similar gear |98 on drive roll 95,and also meshes with an idler gear |99, which drives gear 200 on theshaft |02 of lower roller 0|. Gear 200 meshes with a similar gear 20| onshaft l|00 of roller 99.

Shaft |02 is provided with a sprocket wheel 202 and a chain 203 meshingtherewith, the chain acting to drive an idler gear 204 which impartsrotation to shaft 5| of draw roll 49 by means of gear 205. Gear 205drives a similar gear 206 on shaft 50 of roll 48. Gear 204 also mesheswith gear 201 on lower shaft 55 of lower draw roll 53. Shaft 54 of upperdraw roll 52 is driven by gear 208 meshing with gear 201. Gear 201drives an idler gear 209 which in turn drives gear 2|0 keyed to shaft 59of the lower tape driving roller 66. The upper tape driving roller isdriven by gear 2|| on shaft 6| meshing with gear 2|0. Gear 2|0 alsodrives af larger gear 2|2 which is connected to the shaft ofthe lowerglue wheel 84. anw

Idler gear |84 meshes with gear 2| 3 keyed to drive shaft 2|4, thisshaft passing through and being journaled in housing members 2|5 and 2|6to provide rigidity to the shaft. At the opposite end of shaft 2|4 agear 2|1 keyedv thereon meshes with an idler gear 2|8. The idler gear2|8 drives a larger gear 2|9 which is connected to the housing 220 of adifferential device. The outer end of this housing is rotatably mountedabout differential shaft 22|.

To an extension 222 of differential shaft 22| is connected a relativelylarge worm gear 223. The shaft 22| is ordinarily locked against motionby a worm 224 meshing with the worm gear 223, the worm being mounted ona shaft 225 and controlled by a hand lever 226. For this reason, all ofthe motion of differential housing 220 is transmitted, throughdifferential gears 221, 228, 229 and 230, to an extension of shaft 32 towhich gear 230 is keyed, the shaft 32 lrotating twice for each rotationof the differential housing. It will be understood that by properdirectional rotation of worm 224 vand consequently shaft 22|, the speedof rotation of shaft 32 may be temporarily increased or decreased.

In producing packages of the type described, it is frequently desirableto print the cellulose web prior to the formation of the package. Thatis, the package is produced from a web of cellulose sheeting having aprinted design at properly spaced intervals. It is therefore necessaryto insert thel carboard backing members in association with the sheetingin such a manner that the printing will be properly positioned withrespect tothe backing and cut-off; As discrepancies are bound to arisewith this sort of material, the errors which normally arise would makeeconomical production of the packages impossible without special meansfor providing compensation.

In accordance with my invention, if the design gets out of properassociation in the package, it may be brought back into properassociation by manipulation of hand lever 226. That is, motion of thehand Wheel is transferred to gears 221, 228, 229 and 230 of thedifferential device, and the normal speed of the lower draw roll isincreased or decreased, as the case may be, without affecting the speedof the cutting and cardboard inserting units of the machine. Thecellulose web is` thereby retarded until in proper association, orspeeded up until in proper association.

To drive the upper draw roll, a gear 23| on shaft 32 is made to meshwith a similar gear 232 on shaft 3| of the upper draw roll.Consequently, a change of speed of the lower roll by manipulation of thedifferential device is accompanied by a similar change in the speed ofthe upper roll.

As stated heretofore, the present description is for purposes ofillustration and explanation of a preferred embodiment of my invention.It will be understood by one skilled in the art that many variations maybe made, and all variations and modifications which come within thespirit of my invention are intended to be included in the appendedclaims.

I claim:

l. In a machine of the type described, means for feeding a continuousweb of a cellulose material, means for folding over the outer edges ofsaid web, means for unfolding said edges, means for inserting cardboardbacking members between said edges at spaced intervals, means foradheaively securing said edges to said cardboard members, and means forsevering said cellulose material between adjacent cardboard members.

2. In a machine of the type described, a bellows tube former, means foradvancing a web through said former to produce a bellows tube having itsfree edges folded inwardly, means for opening said free edges, acardboard feeding mechanism; means for applying longitudinal lines ofglue to cardboard backing members fed by said feeding mechanism, gripperdisks having gripper fingers for receiving cardboard backing members fedby said mechanism, said disks being operative to transfer said backingmembers to a position between the opened free edges of said web, meansfor releasing said members when in such position, cutting means forsevering said web, and means responsive in accordance with the action ofsaid gripper iingers for controlling the action of said cutting means.

3. In a device of the type described, a web feeding means, means forassociating cardboard backing members with said web at spaced intervals,said associating means being adjustable to accommodate backing membersof different lengths, cutting means for severing said web betweenadjacent cardboard members, and means driven by said associating meansfor operating said cutter, said last named means being adjustable inaccordance with the adjustment of said associating means.

4. In a device of the type described, means for progressing a web ofcellulose material, means for associating cardboard backing members withsaid web in spaced relation, means for severing said web betweenadjacent backing members. and means for adjusting the speed of said webindependent of the speed of said associating and cutting means.

5. In a device of. the type described, means for progressing a web ofcellulose material..

means for associating backing members with said web in spaced relatin,means for severing said 'web between adjacent backing members, means formaintaining said web under tension, and independent means for adjustingthe speed of said web progressing means.

6. In a device of the type described, means for progressing a web ofcellulose material, means for associating cardboard backing members withsaid web in spaced relation, said associating means including gripperdisks having a plurality of peripheral openings spaced in such a manneras to receive any number of gripper fingers up to sevenv in equallyspaced relation, gripper nngers for said disks, and a driven shaft' forsaid disks, cutting means for severing said web between adjacentcardboard backing members, and means for operating said cutting means inaccordance with the operation of said-associating means, said 4lastnamed means including an index wheel mounted on the shaft of said inaccordance with the spacing of the openings in said gripper disks, camrollers mounted in certain of the openings in said index wheelcorresponding to the opening in said gripper disks in which said gripperngers are mounted, a Geneva mechanism operated by said cams, and meansresponsive to said Geneva motion for actuating said cutter.

7. In a device of the type described, means for progressing a web ofcellulose material, means for associating backing members with said web,means for adjusting the frequency of such association independently ofthe speed of said web, cutting means for severing said web betweenadjacent backing members, means independent of said web progressingmeans for operating said cutting means ln accordance with the adjustmentof said associating means, and means for adjusting the speed of said webprogressing means independently of said associating and cutting means.

8. In a device of the type described, means for forming a bellows foldhaving inwardly folded free edges in cellulose material, means foroutwardly folding said free edges, means for inserting a backing memberbetween said outwardly folded edges, and means for securing saidoutwardly folded edges to said backing member.

9. A method of forming packages which comprises progressing a web ofrelatively thin nexible material, continuously forming a bellows foldwith inwardly extending free edges in said web, continuously foldingsaid edges outwardly, intermittently depositing backing members'betweensaid outwardly folded edges at spaced intervals, securing said edges tosaid member, and severing said web between adjacent backing members toform individual packages.

' 10. In a machine of the type described, means for advancing acontinuous web having a design printed thereon at spaced intervals,means for associating cardboard members with said web, compensatingmeans for adjusting the relative position between said cardboard membersand said web so as to deliver said cardboard members in predeterminedposition with respect to the printed design on said web, and means forsevering said web between adjacent cardboard members along a line spacedfrom adjacent ends thereof.

11. In a device of the type described, means for progressing a web ofmaterial, means for forming opposed bellows folds in said web, means forassociating a sheet of another material on the inside of the free edgesof said web and in overlapped relation thereto, and means for securingthe inner portionsof the free edges of said web with the outer portionof said sheet.

WEB W. MCCAIN.

